Document
FILTERS FOR COMMUNICATIONS EQUIPMENT–RESIN MOLDED,
MULTI-ELEMENT–CFUSY/CFWSY SERIES
The CFUSY lines of ceramic filters are 4-element devices connected in ladder form while the CFWSY455 filters contain 6-elements. These highly selective filters are designed to address the G.D.T. characteristics required in digital communications. The excellent G.D.T. characteristics allow these filters to be utilized in areas such as the mobile cellular markets as well as a variety of stereo applications. Available in 450kHz and 455kHz versions.
DIMENSIONS: mm CFUSY455kHz
8.0
0.3 ± 0.1
1.5 max.
7.3
0.8 ± 0.1
0.15 ± 0.05
3.0 0.6 ± 0.1
2.7 1.2 ± 0.5
ባቢ 7.0
ቤ
4.2
ባቢ ቤ
Sealing 3.3 ± 0.5
CFWSY455kHz
11.0 ± 0.5
0.8 ± 0.1
7.5 ± 0.5
0.15 3.5 ± 0.5
2.9 ± 0.3
0.6 ± 0.1 1.2 ± 0.5
2.9 ± 0.3 2.6 ± 0.3
1.35 ± 0.5
7.0 ± 0.5
ብ ቤ ባ ቢ 4.3 ± 0.3
ቦ
2.3 ± 0.5
Sealing 2.0 ± 0.3
ብ ቤባ ቢ ቦ
1.5 max.
SPECIFICATIONS
Part Number
6dB Bandwidth (kHz) min.
CFUS455BY CFUS455CY CFUS455DY CFUS455EY CFUS455FY CFUS455GY
CFWS455BY CFWS455CY CFWS455DY CFWS455EY CFWS455FY CFWS455GY
±15.0 ±12.5 ±10.0 ±7.5 ±6.0 ±4.5
±15.0 ±12.5 ±10.0 ±7.5 ±6.0 ±4.5
Attenuation Bandwidth (kHz) max.
±35 ±30 ±25 ±20 ±17.5 ±15
±35 ±30 ±25 ±20 ±17.5 ±15
PART NUMBERING SYSTEM
Stop Band Attenuation
(dB) min
25 25 23 23 23 23
40 min. 40 min. 40 min. 40 min. 40 min. 40 min.
Insertion Loss (dB) max.
5.0 6.0 7.0 8.0 9.0 10.0
6.0 7.0 8.0 9.0 10.0 11.0
Ripple (dB) max.
1.0 1.0 1.0 1.0 1.0 1.0
1.0 1.0 1.0 1.0 1.0 1.0
Group Delay Time Input/Output sec. max. (kHz) Impedance (⍀)
15 (455 ± 10) 15 (455 ± 8.0) 20 (455 ± 7.0) 20 (455 ± 5.0) 20 (455 ± 4.0) 20 (455 ± 3.0)
30 (455 ± 10) 30 (455 ± 8.0) 30 (455 ± 7.0) 30 (455 ± 5.0) 40 (455 ± 4.0) 40 (455 ± 3.0)
1.5k 1.5k 1.5k 1.5k 2.0k 2.0k
1.5k 1.5k 1.5k 1.5k 2.0k 2.0k
CFUS/CFWS 455 D
Y
FILTERS
SERIES
450 OR 455 Frequency in kHz
BANDWIDTH
TYPE
̆Applicable in North American market only. ̄Applicable in European market only. For more detailed information regarding this product line in North America, see Catalog No. P-05-D. To receive additional information on Murata Products call 1-800 -831-9172. For more detailed information regarding this product line in Europe, see Catalog No. P05E-8.
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